package org.yefei.homeworkday17.one;

public class TestFly {

	public static void main(String[] args) {
		Fly w = new WildGoose("大雁");
		Fly bat = new Bat();
		Fly p = new Plane();
		Fly k = new Kite();
		w.fly();
		bat.fly();
		p.fly();
		k.fly();

	}

}
